306581380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{2189867}}^1$

素因数の和:2189883

約数の個数: 24

約数和(自身を含む): 735795648

約数和(自身を除く): 429214268

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 2189867, 4379734, 8759468, 10949335, 15329069, 21898670, 30658138, 43797340, 61316276, 76645345, 153290690, 306581380]

約数ペア:

[(1, 306581380), (2, 153290690), (4, 76645345), (5, 61316276), (7, 43797340), (10, 30658138), (14, 21898670), (20, 15329069), (28, 10949335), (35, 8759468), (70, 4379734), (140, 2189867)]